The Vittoria Open Corsa Evo CX III 700 x 23C

Test Summary by bicyclerollingresistance

Conclusion: 4 / 5 Recommended
Weight: 237 grams
Rolling Resistance: 13.0 watts
Puncture Resistance: 12 / Not Tested

  is the top of the line clincher road bike tire from Vittoria, it is a clincher version of the tubular Corsa CX. According to Vittoria, the Corsa CX is the world's best-known and most-used tubular road bike tire. The Corespun 320 TPI cotton casing, PRB 2.0 flat protection, and ISOgrip rubber compound are their highest quality ingredients. They even claim this tire to be "Provably the fastest all-round racing tire available".

The Open Corsa Evo 25C is 28 mm wide on a 17C rim, which is big for a 25C tire. Most of the 25C width tires I've tested actually measure closer to a 28C size, so make sure you have enough clearance. When examining the tire, it feels very fast, the tread feels very subtle, more so than the GP4000S; and unlike most other road bike tires, the Corsa Evo actually has a tread pattern, although it is very thin.